$450 amps are fine... but not when they only push 100W x 4 and 500W x 1. The 4 chan I listed is $270 and pushes 125-160W x4 into components and is designed to be 2 ohm stable. I ran 14ga to all speakers when ripping the factory stereo. I also keep component and woofer amps as separate units. Personal preference, of course, but as someone who has spent many thousands only to discover all the points of failure, that's how I run my jeep.
'05 TJ Rubicon | '98 XJ Sport
That moment when you look at a really nice JK and think to yourself, "Well I SUPPOSE I could see myself trading in my TJ for one of those, but for those ugly ass door handles."